---Does any one of you know where Jack is?

---_________. Maybe he is in the reading room.


  1. A.
    I am not sure
  2. B.
    I know where he is
  3. C.
    He isn't here
  4. D.
    He leaves here
A
句意：--你們中有人知道杰克在哪嗎？--我不太肯定，或許他在閱覽室吧。根據(jù)“Maybe he is in the reading room”可判斷A項(xiàng)為正確答案。
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